Remove the possibility to use the same module several times. Simplification of...

Remove the possibility to use the same module several times. Simplification of the code ensues. Now sed.info keys are prefixed with the characteristic of the module (stellar, nebular, etc.).

pcigale/creation_modules/__init__.py

@@ -125,13 +125,6 @@ class CreationModule(object):
         # module class is coded.
         self.name = name or os.path.basename(inspect.getfile(self))[:4]
 
-        # We want to postfix the various keys of the SED with the same
-        # postfix as the module name, if any.
-        if '.' in name:
-            self.postfix = "." + name.split(".", 1)[1]
-        else:
-            self.postfix = ""
-
         if not blank:
             # Parameters given in constructor.
             parameters = kwargs

pcigale/creation_modules/bc03.py

@@ -78,7 +78,6 @@ class BC03(CreationModule):
             SED object.
 
         """
-
         imf = self.parameters["imf"]
         metallicity = float(self.parameters["metallicity"])
         separation_age = int(self.parameters["separation_age"])
@@ -102,35 +101,28 @@ class BC03(CreationModule):
 
         sed.add_module(self.name, self.parameters)
 
-        sed.add_info("ssp_imf" + self.postfix, imf)
-        sed.add_info("ssp_metallicity" + self.postfix, metallicity)
-        sed.add_info("ssp_old_young_separation_age" + self.postfix,
-                     separation_age)
-
-        sed.add_info("ssp_m_star_young" + self.postfix,
-                     young_info["m_star"], True)
-        sed.add_info("ssp_m_gas_young" + self.postfix,
-                     young_info["m_gas"], True)
-        sed.add_info("ssp_n_ly_young" + self.postfix, young_info["n_ly"])
-        sed.add_info("ssp_b_400_young" + self.postfix, young_info["b_4000"])
-        sed.add_info("ssp_b4_vn_young" + self.postfix, young_info["b4_vn"])
-        sed.add_info("ssp_b4_sdss_young" + self.postfix, young_info["b4_sdss"])
-        sed.add_info("ssp_b_912_young" + self.postfix, young_info["b_912"])
-
-        sed.add_info("ssp_m_star_old" + self.postfix, old_info["m_star"], True)
-        sed.add_info("ssp_m_gas_old" + self.postfix, old_info["m_gas"], True)
-        sed.add_info("ssp_n_ly_old" + self.postfix, old_info["n_ly"])
-        sed.add_info("ssp_b_400_old" + self.postfix, old_info["b_4000"])
-        sed.add_info("ssp_b4_vn_old" + self.postfix, old_info["b4_vn"])
-        sed.add_info("ssp_b4_sdss_old" + self.postfix, old_info["b4_sdss"])
-        sed.add_info("ssp_b_912_old" + self.postfix, old_info["b_912"])
-
-        sed.add_contribution("ssp_old" + self.postfix,
-                             old_wave,
-                             old_lumin)
-        sed.add_contribution("ssp_young" + self.postfix,
-                             young_wave,
-                             young_lumin)
+        sed.add_info("stellar.imf", imf)
+        sed.add_info("stellar.metallicity", metallicity)
+        sed.add_info("stellar.old_young_separation_age", separation_age)
+
+        sed.add_info("stellar.m_star_young", young_info["m_star"], True)
+        sed.add_info("stellar.m_gas_young", young_info["m_gas"], True)
+        sed.add_info("stellar.n_ly_young", young_info["n_ly"])
+        sed.add_info("stellar.b_400_young", young_info["b_4000"])
+        sed.add_info("stellar.b4_vn_young", young_info["b4_vn"])
+        sed.add_info("stellar.b4_sdss_young", young_info["b4_sdss"])
+        sed.add_info("stellar.b_912_young", young_info["b_912"])
+
+        sed.add_info("stellar.m_star_old", old_info["m_star"], True)
+        sed.add_info("stellar.m_gas_old", old_info["m_gas"], True)
+        sed.add_info("stellar.n_ly_old", old_info["n_ly"])
+        sed.add_info("stellar.b_400_old", old_info["b_4000"])
+        sed.add_info("stellar.b4_vn_old", old_info["b4_vn"])
+        sed.add_info("stellar.b4_sdss_old", old_info["b4_sdss"])
+        sed.add_info("stellar.b_912_old", old_info["b_912"])
+
+        sed.add_contribution("stellar.old", old_wave, old_lumin)
+        sed.add_contribution("stellar.young", young_wave, young_lumin)
 
 # CreationModule to be returned by get_module
 Module = BC03

pcigale/creation_modules/casey2012.py

@@ -42,14 +42,6 @@ class Casey2012(CreationModule):
             "float",
             "Mid-infrared powerlaw slope.",
             None
-        )),
-        ('attenuation_value_keys', (
-            'string',
-            "Keys of the SED information dictionary where the module will "
-            "look for the attenuation (in W) to re-emit. You can give several "
-            "keys separated with a & (don't use commas), a re-emission "
-            "contribution will be added for each key.",
-            "attenuation"
         ))
     ])
 
@@ -103,31 +95,17 @@ class Casey2012(CreationModule):
         sed : pcigale.sed.SED object
 
         """
+        luminosity = sed.info['attenuation.total']
+
+        sed.add_module(self.name, self.parameters)
+        sed.add_info("dust.temperature", self.parameters["temperature"])
+        sed.add_info("dust.alpha", self.parameters["alpha"])
+        sed.add_info("dust.beta", self.parameters["beta"])
 
-        # Base name for adding information to the SED.
-        name = self.name or 'casey2012'
-
-        attenuation_value_keys = [
-            item.strip() for item in
-            self.parameters["attenuation_value_keys"].split("&")]
-
-        sed.add_module(name, self.parameters)
-        sed.add_info("temperature" + self.postfix,
-                     self.parameters["temperature"])
-        sed.add_info("alpha" + self.postfix, self.parameters["alpha"])
-        sed.add_info("beta" + self.postfix, self.parameters["beta"])
-
-        for attenuation in attenuation_value_keys:
-            sed.add_contribution(
-                name + '_powerlaw_' + attenuation,
-                self.wave,
-                sed.info[attenuation] * self.lumin_powerlaw
-            )
-            sed.add_contribution(
-                name + '_blackbody_' + attenuation,
-                self.wave,
-                sed.info[attenuation] * self.lumin_blackbody
-            )
+        sed.add_contribution('dust.powerlaw', self.wave,
+                             luminosity * self.lumin_powerlaw)
+        sed.add_contribution('dust.blackbody', self.wave,
+                             luminosity * self.lumin_blackbody)
 
 # CreationModule to be returned by get_module
 Module = Casey2012

pcigale/creation_modules/dale2014.py

@@ -79,28 +79,18 @@ class Dale2014(CreationModule):
         parameters : dictionary containing the parameters
 
         """
-        attenuation_value_keys = [
-            item.strip() for item in
-            self.parameters["attenuation_value_keys"].split("&")]
+        luminosity = sed.info['attenuation.total']
 
         frac_agn = self.parameters["fracAGN"]
 
         sed.add_module(self.name, self.parameters)
-        sed.add_info("fracAGN" + self.postfix, self.parameters["fracAGN"])
-        sed.add_info("alpha" + self.postfix, self.parameters["alpha"])
-
-        for attenuation in attenuation_value_keys:
-            sed.add_contribution(
-                'dale2014_sb_' + attenuation + self.postfix,
-                self.model_sb.wave,
-                sed.info[attenuation] * self.model_sb.lumin
-            )
-
-            sed.add_contribution(
-                'dale2014_quasar_' + attenuation + self.postfix,
-                self.model_quasar.wave,
-                frac_agn * sed.info[attenuation] * self.model_quasar.lumin
-            )
+        sed.add_info("agn.fracAGN", self.parameters["fracAGN"])
+        sed.add_info("dust.alpha", self.parameters["alpha"])
+
+        sed.add_contribution('dust', self.model_sb.wave,
+                             luminosity * self.model_sb.lumin)
+        sed.add_contribution('agn', self.model_quasar.wave,
+                             frac_agn * luminosity * self.model_quasar.lumin)
 
 # CreationModule to be returned by get_module
 Module = Dale2014

pcigale/creation_modules/dh2002.py

@@ -60,21 +60,16 @@ class DH2002(CreationModule):
 
         """
         alpha = float(self.parameters["alpha"])
-        attenuation_value_keys = [
-            item.strip() for item in
-            self.parameters["attenuation_value_keys"].split("&")]
+
+        luminosity = sed.info['attenuation.total']
 
         ir_template = self.dh2002.get_template(alpha)
 
         sed.add_module(self.name, self.parameters)
-        sed.add_info("alpha" + self.postfix, alpha)
-
-        for attenuation in attenuation_value_keys:
-            sed.add_contribution(
-                self.name + "_" + attenuation,
-                self.dh2002.wavelength_grid,
-                sed.info[attenuation] * ir_template
-            )
+        sed.add_info("dust.alpha", alpha)
+
+        sed.add_contribution('dust', self.dh2002.wavelength_grid,
+                             luminosity * ir_template)
 
 # CreationModule to be returned by get_module
 Module = DH2002

pcigale/creation_modules/dl2007.py

@@ -50,14 +50,6 @@ class DL2007(CreationModule):
             'float',
             "Fraction illuminated from Umin to Umax",
             None
-        )),
-        ('attenuation_value_keys', (
-            'string',
-            "Keys of the SED information dictionary where the module will "
-            "look for the attenuation (in W) to re-emit. You can give several "
-            "keys separated with a & (don't use commas), a re-emission "
-            "contribution will be added for each key.",
-            "attenuation"
         ))
     ])
 
@@ -104,30 +96,18 @@ class DL2007(CreationModule):
         parameters : dictionary containing the parameters
 
         """
-        attenuation_value_keys = [
-            item.strip() for item in
-            self.parameters["attenuation_value_keys"].split("&")]
-
-        # Base name for adding information to the SED.
-        name = self.name or 'dl2007'
-
-        sed.add_module(name, self.parameters)
-        sed.add_info('qpah' + self.postfix, self.parameters["qpah"])
-        sed.add_info('umin' + self.postfix, self.parameters["umin"])
-        sed.add_info('umax' + self.postfix, self.parameters["umax"])
-        sed.add_info('gamma' + self.postfix, self.parameters["gamma"])
-
-        for attenuation in attenuation_value_keys:
-            sed.add_contribution(
-                name + '_Umin_Umin_' + attenuation,
-                self.model_minmin.wave,
-                sed.info[attenuation] * self.model_minmin.lumin
-            )
-            sed.add_contribution(
-                name + '_Umin_Umax_' + attenuation,
-                self.model_minmax.wave,
-                sed.info[attenuation] * self.model_minmax.lumin
-            )
+        luminosity = sed.info['attenuation.total']
+
+        sed.add_module(self.name, self.parameters)
+        sed.add_info('dust.qpah', self.parameters["qpah"])
+        sed.add_info('dust.umin', self.parameters["umin"])
+        sed.add_info('dust.umax', self.parameters["umax"])
+        sed.add_info('dust.gamma', self.parameters["gamma"])
+
+        sed.add_contribution('dust.Umin_Umin', self.model_minmin.wave,
+                             luminosity * self.model_minmin.lumin)
+        sed.add_contribution('dust.Umin_Umax', self.model_minmax.wave,
+                             luminosity * self.model_minmax.lumin)
 
 # CreationModule to be returned by get_module
 Module = DL2007

pcigale/creation_modules/dustatt_calzleit.py

@@ -192,19 +192,6 @@ class CalzLeit(CreationModule):
             "to the young one (<1).",
             None
         )),
-        ("young_contribution_name", (
-            "string",
-            "Name of the contribution containing the spectrum of the "
-            "young population.",
-            "ssp_young"
-        )),
-        ("old_contribution_name", (
-            "string",
-            "Name of the contribution containing the spectrum of the "
-            "old population. If it is set to 'None', only one population "
-            "is considered.",
-            "ssp_old"
-        )),
         ("uv_bump_wavelength", (
             "float",
             "Central wavelength of the UV bump in nm.",
@@ -235,17 +222,12 @@ class CalzLeit(CreationModule):
     ])
 
     out_parameter_list = OrderedDict([
-        ("E_BVs_young", "E(B-V)*, the colour excess of the stellar continuum "
-                        "light for the young population."),
-        ("E_BVs_old", "E(B-V)*, the colour excess of the stellar "
-                      "continuum light for the old population."),
-        ("attenuation_young", "Amount of luminosity attenuated from the "
-                              "young population in W."),
-        ("E_BVs_old_factor", "Ratio of the old population E(B-V)* to the "
+        ("E_BVs", "E(B-V), the colour excess of the stellar continuum "
+                  "light for each population."),
+        ("E_BVs_old_factor", "Ratio of the old population E(B-V) to the "
                              "young one."),
-        ("attenuation_old", "Amount of luminosity attenuated from the "
-                            "old population in W."),
-        ("attenuation", "Total amount of luminosity attenuated in W."),
+        ("attenuation", "Amount of luminosity attenuated in W for each "
+                        "component and in total."),
         ("uv_bump_wavelength", "Central wavelength of UV bump in nm."),
         ("uv_bump_width", "Width of the UV bump in nm."),
         ("uv_bump_amplitude", "Amplitude of the UV bump in nm."),
@@ -270,12 +252,10 @@ class CalzLeit(CreationModule):
         sed : pcigale.sed.SED object
 
         """
-
+        ebvs = {}
         wavelength = sed.wavelength_grid
-        ebvs_young = float(self.parameters["E_BVs_young"])
-        ebvs_old = float(self.parameters["E_BVs_old_factor"]) * ebvs_young
-        young_contrib = self.parameters["young_contribution_name"]
-        old_contrib = self.parameters["old_contribution_name"]
+        ebvs['young'] = float(self.parameters["E_BVs_young"])
+        ebvs['old'] = float(self.parameters["E_BVs_old_factor"]) * ebvs['young']
         uv_bump_wavelength = float(self.parameters["uv_bump_wavelength"])
         uv_bump_width = float(self.parameters["uv_bump_wavelength"])
         uv_bump_amplitude = float(self.parameters["uv_bump_amplitude"])
@@ -295,45 +275,26 @@ class CalzLeit(CreationModule):
                                    uv_bump_width, uv_bump_amplitude,
                                    powerlaw_slope)
 
-        # Young population attenuation
-        luminosity = sed.get_lumin_contribution(young_contrib)
-        attenuated_luminosity = luminosity * 10 ** (ebvs_young
-                                                    * sel_attenuation / -2.5)
-        attenuated_luminosity[wavelength < 91.2] = 0
-        attenuation_spectrum = attenuated_luminosity - luminosity
-        # We integrate the amount of luminosity attenuated (-1 because the
-        # spectrum is negative).
-        attenuation_young = -1 * np.trapz(attenuation_spectrum, wavelength)
-
-        sed.add_module(self.name, self.parameters)
-        sed.add_info("E_BVs_young" + self.postfix, ebvs_young)
-        sed.add_info("attenuation_young" + self.postfix, attenuation_young)
-        sed.add_contribution("attenuation_young" + self.postfix,
-                             wavelength, attenuation_spectrum)
-
-        # Old population (if any) attenuation
-        if old_contrib:
-            luminosity = sed.get_lumin_contribution(old_contrib)
-            attenuated_luminosity = (luminosity *
-                                     10 ** (ebvs_old
-                                            * sel_attenuation / -2.5))
-            attenuated_luminosity[wavelength < 91.2] = 0
+        attenuation_total = 0.
+        for contrib in list(sed.contribution_names):
+            age = contrib.split('.')[-1].split('_')[-1]
+            luminosity = sed.get_lumin_contribution(contrib)
+            attenuated_luminosity = (luminosity * 10 **
+                                    (ebvs[age] * sel_attenuation / -2.5))
             attenuation_spectrum = attenuated_luminosity - luminosity
-            attenuation_old = -1 * np.trapz(attenuation_spectrum, wavelength)
-
-            sed.add_info("E_BVs_old" + self.postfix, ebvs_old)
-            sed.add_info("E_BVs_old_factor" + self.postfix,
-                         self.parameters["E_BVs_old_factor"])
-            sed.add_info("attenuation_old" + self.postfix, attenuation_old)
-            sed.add_contribution("attenuation_old" + self.postfix,
-                                 wavelength, attenuation_spectrum)
-        else:
-            attenuation_old = 0
-
-        # Total attenuation (we don't take into account the energy attenuated
-        # in the spectral lines)
-        sed.add_info("attenuation" + self.postfix,
-                     attenuation_young + attenuation_old)
+            # We integrate the amount of luminosity attenuated (-1 because the
+            # spectrum is negative).
+            attenuation = -1 * np.trapz(attenuation_spectrum, wavelength)
+            attenuation_total += attenuation
+
+            sed.add_module(self.name, self.parameters)
+            sed.add_info("attenuation.E_BVs." + contrib, ebvs[age])
+            sed.add_info("attenuation." + contrib, attenuation)
+            sed.add_contribution("attenuation." + contrib, wavelength,
+                                 attenuation_spectrum)
+
+        # Total attenuation
+        sed.add_info("attenuation.total", attenuation_total)
 
         # Fλ fluxes (only from continuum) in each filter after attenuation.
         flux_att = {}
@@ -345,7 +306,7 @@ class CalzLeit(CreationModule):
 
         # Attenuation in each filter
         for filter_name in filters:
-            sed.add_info(filter_name + "_attenuation" + self.postfix,
+            sed.add_info("attenuation." + filter_name,
                          -2.5 * np.log10(flux_att[filter_name] /
                                          flux_noatt[filter_name]))
 

pcigale/creation_modules/dustatt_powerlaw.py

@@ -117,19 +117,6 @@ class PowerLawAtt(CreationModule):
             "population compared to the young one (<1).",
             None
         )),
-        ("young_contribution_name", (
-            "string",
-            "Name of the contribution containing the spectrum of the "
-            "young population.",
-            "ssp_young"
-        )),
-        ("old_contribution_name", (
-            "string",
-            "Name of the contribution containing the spectrum of the "
-            "old population. If it is set to 'None', only one population "
-            "is considered.",
-            "ssp_old"
-        )),
         ("uv_bump_wavelength", (
             "float",
             "Central wavelength of the UV bump in nm.",
@@ -160,16 +147,12 @@ class PowerLawAtt(CreationModule):
     ])
 
     out_parameter_list = OrderedDict([
-        ("Av_young", "V-band attenuation of the young population."),
-        ("Av_old", "V-band attenuation of the old population."),
-        ("attenuation_young", "Amount of luminosity attenuated from the "
-                              "young population in W."),
+        ("Av", "V-band attenuation."),
         ("Av_old_factor", "Reduction factor for the V-band attenuation "
                           "of  the old population compared to the young "
                           "one (<1)."),
-        ("attenuation_old", "Amount of luminosity attenuated from the "
-                            "old population in W."),
-        ("attenuation", "Total amount of luminosity attenuated in W."),
+        ("attenuation", "Amount of luminosity attenuated in W for each "
+                        "component and in total."),
         ("uv_bump_wavelength", "Central wavelength of UV bump in nm."),
         ("uv_bump_width", "Width of the UV bump in nm."),
         ("uv_bump_amplitude", "Amplitude of the UV bump in nm."),
@@ -194,12 +177,10 @@ class PowerLawAtt(CreationModule):
         sed : pcigale.sed.SED object
 
         """
-
+        av = {}
         wavelength = sed.wavelength_grid
-        av_young = float(self.parameters["Av_young"])
-        av_old = float(self.parameters["Av_old_factor"] * av_young)
-        young_contrib = self.parameters["young_contribution_name"]
-        old_contrib = self.parameters["old_contribution_name"]
+        av['young'] = float(self.parameters["Av_young"])
+        av['old'] = float(self.parameters["Av_old_factor"] * av['young'])
         uv_bump_wavelength = float(self.parameters["uv_bump_wavelength"])
         uv_bump_width = float(self.parameters["uv_bump_wavelength"])
         uv_bump_amplitude = float(self.parameters["uv_bump_amplitude"])
@@ -219,43 +200,26 @@ class PowerLawAtt(CreationModule):
                                      uv_bump_wavelength, uv_bump_width,
                                      uv_bump_amplitude)
 
-        # Young population attenuation
-        luminosity = sed.get_lumin_contribution(young_contrib)
-        attenuated_luminosity = luminosity * 10 ** (av_young
-                                                    * sel_attenuation / -2.5)
-        attenuation_spectrum = attenuated_luminosity - luminosity
-        # We integrate the amount of luminosity attenuated (-1 because the
-        # spectrum is negative).
-        attenuation_young = -1 * np.trapz(attenuation_spectrum, wavelength)
-
-        sed.add_module(self.name, self.parameters)
-        sed.add_info("Av_young" + self.postfix, av_young)
-        sed.add_info("attenuation_young" + self.postfix, attenuation_young)
-        sed.add_contribution("attenuation_young" + self.postfix, wavelength,
-                             attenuation_spectrum)
-
-        # Old population (if any) attenuation
-        if old_contrib:
-            luminosity = sed.get_lumin_contribution(old_contrib)
-            attenuated_luminosity = (luminosity *
-                                     10 ** (av_old
-                                            * sel_attenuation / -2.5))
+        attenuation_total = 0.
+        for contrib in list(sed.contribution_names):
+            age = contrib.split('.')[-1].split('_')[-1]
+            luminosity = sed.get_lumin_contribution(contrib)
+            attenuated_luminosity = (luminosity * 10 **
+                                    (av[age] * sel_attenuation / -2.5))
             attenuation_spectrum = attenuated_luminosity - luminosity
-            attenuation_old = -1 * np.trapz(attenuation_spectrum, wavelength)
-
-            sed.add_info("Av_old" + self.postfix, av_old)
-            sed.add_info("Av_old_factor" + self.postfix,
-                         self.parameters["Av_old_factor"])
-            sed.add_info("attenuation_old" + self.postfix, attenuation_old)
-            sed.add_contribution("attenuation_old" + self.postfix,
-                                 wavelength, attenuation_spectrum)
-        else:
-            attenuation_old = 0
-
-        # Total attenuation (we don't take into account the energy attenuated
-        # in the spectral lines)
-        sed.add_info("attenuation" + self.postfix,
-                     attenuation_young + attenuation_old)
+            # We integrate the amount of luminosity attenuated (-1 because the
+            # spectrum is negative).
+            attenuation = -1 * np.trapz(attenuation_spectrum, wavelength)
+            attenuation_total += attenuation
+
+            sed.add_module(self.name, self.parameters)
+            sed.add_info("attenuation.Av." + contrib, av[age])
+            sed.add_info("attenuation." + contrib, attenuation)
+            sed.add_contribution("attenuation." + contrib, wavelength,
+                                 attenuation_spectrum)
+
+        # Total attenuation
+        sed.add_info("attenuation.total", attenuation_total)
 
         # Fλ fluxes (only in continuum) in each filter after attenuation.
         flux_att = {}
@@ -267,7 +231,7 @@ class PowerLawAtt(CreationModule):
 
         # Attenuation in each filter
         for filter_name in filters:
-            sed.add_info(filter_name + "_attenuation" + self.postfix,
+            sed.add_info("attenuation." + filter_name,
                          -2.5 * np.log10(flux_att[filter_name] /
                                          flux_noatt[filter_name]))
 

pcigale/creation_modules/igm_attenuation.py

@@ -42,9 +42,7 @@ class IgmAttenuation(CreationModule):
         sed : pcigale.sed.SED object
 
         """
-
         if sed.redshift > 0:
-
             # To memoize the IGM attenuation computation (with depends on the
             #  wavelength grid and the redshift), we have to make the
             # wavelength grid hashable. We do this by converting to a string.
@@ -58,11 +56,7 @@ class IgmAttenuation(CreationModule):
             igm_effect = self.igm_att[wave_redshift] * sed .luminosity
 
             sed.add_module(self.name, self.parameters)
-            sed.add_contribution(
-                self.name,
-                sed.wavelength_grid,
-                igm_effect
-            )
+            sed.add_contribution('igm', sed.wavelength_grid, igm_effect)
 
 
 def igm_transmission_meiksin(wavelength, redshift):

pcigale/creation_modules/m2005.py

@@ -116,7 +116,6 @@ class M2005(CreationModule):
             SED object.
 
         """
-
         imf = self.parameters["imf"]
         metallicity = float(self.parameters["metallicity"])
         separation_age = int(self.parameters["separation_age"])
@@ -140,52 +139,41 @@ class M2005(CreationModule):
 
         sed.add_module(self.name, self.parameters)
 
-        sed.add_info('ssp_imf' + self.postfix, imf)
-        sed.add_info('ssp_metallicity' + self.postfix, metallicity)
-        sed.add_info('ssp_old_young_separation_age' + self.postfix,
-                     separation_age)
-
-        sed.add_info('ssp_mass_total_old' + self.postfix, old_masses[0], True)
-        sed.add_info('ssp_mass_alive_old' + self.postfix, old_masses[1], True)
-        sed.add_info('ssp_mass_white_dwarf_old' + self.postfix, old_masses[2],
-                     True)
-        sed.add_info('ssp_mass_neutrino_old' + self.postfix, old_masses[3],
-                     True)
-        sed.add_info('ssp_mass_black_hole_old' + self.postfix, old_masses[4],
-                     True)
-        sed.add_info('ssp_mass_turn_off_old' + self.postfix, old_masses[5],
-                     True)
-
-        sed.add_info('ssp_mass_total_young' + self.postfix, young_masses[0],
-                     True)
-        sed.add_info('ssp_mass_alive_young' + self.postfix, young_masses[1],
-                     True)
-        sed.add_info('ssp_mass_white_dwarf_young' + self.postfix,
-                     young_masses[2], True)
-        sed.add_info('ssp_mass_neutrino_young' + self.postfix, young_masses[3],
-                     True)
-        sed.add_info('ssp_mass_black_hole_young' + self.postfix,
-                     young_masses[4], True)
-        sed.add_info('ssp_mass_turn_off_young' + self.postfix, young_masses[5],
-                     True)
-
-        sed.add_info('ssp_mass_total' + self.postfix,
+        sed.add_info('stellar.imf', imf)
+        sed.add_info('stellar.metallicity', metallicity)
+        sed.add_info('stellar.old_young_separation_age', separation_age)
+
+        sed.add_info('stellar.mass_total_old', old_masses[0], True)